Lesson 21. Flower Anatomy
Class Discussion: What are the parts of a flower? What does each part do?
Flowering plants are called angiosperms. Many flowers are composed of both female and male
parts; these are called perfect flowers. If they are only one or the other, they are imperfect.
Parts of a perfect flower:
Stamen: the male part of the flower.
Anther contains pollen, the male reproductive cell.
Filament holds the anther.
Pistil: the female part of the flower.
Stigma: receives the pollen
Style: a tube that transports the pollen from the stigma to the ovary.
Ovary: the female reproductive organ that holds the ovules/seeds
Ovule: immature reproductive cells that will become the seed when fertilized by pollen.
Peduncle: the stalk of the flower
Sepal: small leaves that surround the petals and reproductive parts of the flower
Petal: a modified leaf that surrounds the flower’s reproductive parts
Review Questions:
Why do flowers come in all different shapes, colors, and smells?
What is a flower’s purpose?
Which part of the flower grows into a seed?
How many ovules can you find?
Worksheet & Activity: Hand out a daffodil to each pair of students. Give them 10 minutes to
dissect the flower and draw a picture of what they see. On the overhead or board, draw the
flower and its parts for the students to follow along. Label each part, describing its function.
Color the worksheet if time allows.